CN201028058Y - Multi-pass valve - Google Patents
Multi-pass valve Download PDFInfo
- Publication number
- CN201028058Y CN201028058Y CNU2007200048345U CN200720004834U CN201028058Y CN 201028058 Y CN201028058 Y CN 201028058Y CN U2007200048345 U CNU2007200048345 U CN U2007200048345U CN 200720004834 U CN200720004834 U CN 200720004834U CN 201028058 Y CN201028058 Y CN 201028058Y
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- liquid
- hole
- valve
- push rod
- spool
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- Expired - Fee Related
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- Multiple-Way Valves (AREA)
Abstract
A multi-way valve relates to the component for sample analytical device, in particular to a multi-way valve used for diffluence or confluence the liquid. The utility model is characterized in that at least one air (liquid) outlet hole is arranged on the valve body, wherein, the air (liquid) outlet hole consists of three holes, the diameter of the inner section is smaller than that of the outer section, the inner section is connected with the outer section through a cone section, a support rod, a sealing plug and a spring are arranged in turn inside the air (liquid) outlet hole, the valve core is provided with at least one convex matching with the support rod. With the different combinations between the convex on the valve core and the support rod, the utility model can satisfy various needs of the liquid delivery, such as one to one, one to many, many to many, complete close, and complete open, etc., thereby being capable of saving effectively the production cost of the sample analytical device and decreasing the points with the risk of malfunction. The utility model has simple structure, reliable function, good sealing efficacy, easy processing, convenient maintenance and low maintenance cost.
Description
Technical field
The utility model relates to the parts of sample analysis instrument, specifically a kind of multiway valve.
Background technique
Regular meeting runs into the situation that needs to carry multi-path fluid (for example liquid or gas) in the sample analysis instrument, and mode commonly used is to lay pipe network and a plurality of valves are set to control respectively, and this not only increases cost but also increases the fault point, is unfavorable for administering and maintaining.
The model utility content
At the defective that exists in the prior art, the purpose of this utility model be to provide a kind of simple in structure, be easy to process, easy to maintenance, the multiway valve that can substitute a plurality of valves.
For reaching above purpose, the technological scheme that the utility model is taked is:
A kind of multiway valve, comprise valve body, valve pocket, valve gap, drive the transmission shaft of valve core movement, air inlet (liquid) pipe, one or more give vent to anger (liquid) hole and (liquid) pipes of giving vent to anger accordingly, it is characterized in that Kong Yousan hole of said giving vent to anger (liquid) section composition, the diameter of its inner segment is less than the diameter of outer section, inner segment is connected by conical section with outer section, said giving vent to anger (liquid) is provided with push rod in the hole successively, sealing plug and spring, one end of push rod exposes in valve pocket, the other end contacts with sealing plug, sealing plug is arranged on the conical section in (liquid) hole of giving vent to anger, an end that is in the spring of compressive state contacts with sealing plug, the other end contacts with (liquid) pipe of giving vent to anger, and said spool is provided with at least one and the suitable projection of push rod.
A kind of concrete technological scheme that the utility model is taked is, said valve body is cylindrical, and air outlet hole is provided with along the valve body circumference, and spool is a disc, and projection is arranged at spool and the interior relative position of push rod of air outlet hole.
The another kind of concrete technological scheme that the utility model is taked is, said valve body is a cuboid shape, and air outlet hole is arranged at valve body bottom or side, and spool is a cuboid shape, and projection is arranged at spool and the interior relative position of push rod of air outlet hole.
On the basis of such scheme, the end that said push rod contacts with sealing plug is provided with chimb, and chimb is stuck in the conical section, and the sectional area of chimb is less than the sectional area at the position of sealing plug sealing conical section.
Further, said chimb is round or " X " type or "-" type.
The utlity model has following advantage:
1. product is by the various combination mode of projection on the spool and push rod, can satisfy liquid, gas delivery one to one, different demands such as one-to-many, multi-to-multi, contract fully, full open, can effectively save the sample analysis instrument cost of production, reduce the fault point.
2. product structure is simple, and reliability and valve seal performance are good, is easy to processing, and easy to maintenance, maintenance cost is cheap.
Description of drawings
The utility model has following accompanying drawing:
The cylindrical multiway valve signal of Fig. 1
The local signal of Fig. 2 projection and (liquid) hole of giving vent to anger
The signal of Fig. 3 cuboid shape multiway valve
Reference character:
1 is stepper motor, and 2 are air inlet (liquid) pipe, and 3 are (liquid) pipe of giving vent to anger, and 4 is valve body, and 5 is valve gap, and 6 is spool, and 7 is projection, and 8 is push rod, and 9 is sealing plug, and 10 is spring, and 11 is gear train, and 12 is transmission shaft, and 13 is valve pocket.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is an embodiment of the present utility model, valve body 4 is cylindrical in the present embodiment, valve gap 5 is provided with for air inlet (liquid) pipe 2 air inlet of passing through (liquid) holes, valve body bottom centre is provided with the through hole that passes through for transmission shaft 12, be provided with the bearing adaptive in the through hole with transmission shaft, stepper motor 1 drives transmission shaft 12 by belt, transmission shaft 12 is fixedlyed connected with spool 6 and is driven valve core rotation, spool 6 is a disc, be arranged in the valve pocket 13 in the valve body, be provided with at least one and (liquid) pipe (3) adaptive giving vent to anger (liquid) hole of giving vent to anger around the valve body.The local signal of the projection 7 and (liquid) hole of giving vent to anger as shown in Figure 2, (liquid) hole of giving vent to anger is communicated with the valve pocket and the valve body outside, form by three hole sections, be positioned at the inner segment that is called of valve pocket side, be positioned at outer section of being called of the valve body outside, the diameter of its inner segment is less than the diameter of outer section, and inner segment is connected by conical section with outer section.Giving vent to anger is provided with push rod 8, sealing plug 9, spring 10 in (liquid) hole successively, and an end of push rod exposes in valve pocket, and the other end contacts with sealing plug; Sealing plug is arranged on the conical section in (liquid) hole of giving vent to anger; An end that is in the spring of compressive state contacts with sealing plug, and the other end contacts with (liquid) pipe of giving vent to anger.The periphery of spool is provided with at least one and the suitable projection of push rod.The push rod diameter can move around under the effect of projection and spring less than (liquid) bore dia of giving vent to anger.When push rod when projection on the spool does not contact because the elastic force of spring compressing sealing plug, (liquid) hole of giving vent to anger is in closed state.When needs are opened some giving vent to anger (liquid) hole, stepper motor drives transmission shaft and then drives valve core rotation, and when projection forwarded the push rod position in (liquid) hole of giving vent to anger that need open to, projection was with push rod jack-up, push rod backs down sealing plug again, finishes the opening action in (liquid) hole of giving vent to anger.Close when giving vent to anger (liquid) hole when needs, as long as rotational valve core makes projection leave push rod once more, spring will be oppressed sealing plug again and be returned to closed state.
Fig. 3 is another embodiment of the present utility model, valve body 4 is a cuboid shape in the present embodiment, valve gap 5 is provided with for air inlet (liquid) pipe 2 air inlet of passing through (liquid) holes in the present embodiment, the transmission shaft 12 of present embodiment can adopt leading screw, leading screw is by the bearings that is arranged on the valve body two ends, stepper motor 1 drives transmission shaft by gear train 11 and rotates, spool 6 is a cuboid, spool is provided with the screw adaptive with transmission shaft, forward or reverse along with stepper motor, spool can to-and-fro motion on transmission shaft, and the valve body bottom is provided with at least one and (liquid) pipe (3) adaptive giving vent to anger (liquid) hole of giving vent to anger.The local signal of the projection 7 among the embodiment of Fig. 3 and (liquid) hole of giving vent to anger can be with reference to figure 2, and the valve body 4 among Fig. 3 embodiment is a cuboid shape, and air outlet hole is arranged at the valve body bottom and arranges along leading screw direction straight line type.(liquid) hole of giving vent to anger is communicated with the valve pocket and the valve body outside, is made up of three hole sections, is positioned at the inner segment that is called of valve pocket side, is positioned at outer section of being called of the valve body outside, and the diameter of its inner segment is less than the diameter of outer section, inner segment and section being connected by conical section outward.Giving vent to anger is provided with push rod 8, sealing plug 9, spring 10 in (liquid) hole successively, and an end of push rod exposes in valve pocket, and the other end contacts with sealing plug; Sealing plug is arranged on the conical section in (liquid) hole of giving vent to anger; An end that is in the spring of compressive state contacts with sealing plug, and the other end contacts with (liquid) pipe of giving vent to anger.The periphery of spool is provided with at least one and the suitable projection of push rod.The push rod diameter can move around under the effect of projection and spring less than (liquid) bore dia of giving vent to anger.When push rod when projection on the spool does not contact, because the elastic force of spring compressing sealing plug, (liquid) hole of giving vent to anger is in closed state. when needs are opened some giving vent to anger (liquid) hole, stepper motor drives transmission shaft and then drives spool and moves, when projection moves on to the push rod position in (liquid) hole of giving vent to anger that need open, projection is with push rod jack-up, and push rod backs down sealing plug again, finishes the opening action in (liquid) hole of giving vent to anger.Close when giving vent to anger (liquid) hole when needs, as long as moving valve core makes projection leave push rod once more, spring will be oppressed sealing plug again and be returned to closed state.
Hole in the utility model, crack sealing means, such as the sealing of air inlet (liquid) hole and air inlet (liquid) pipe, the sealing of (liquid) hole and sealing, valve body and the valve gap of sealing, transmission shaft and the valve body of (liquid) pipe of giving vent to anger etc. of giving vent to anger, according to the difference of fed sheet of a media, its sealing means adopts corresponding known technology to get final product.The concrete kind of drive of stepper motor and transmission shaft is not limited to the explanation in the foregoing description, can adopt corresponding known technology to realize according to actual needs.The utility model also can be suitable for manually-operated gate, and corresponding increase manual turntable and transmission part get final product when manually-operated gate.The multiway valve that the utility model is addressed can be used for conveying gas or liquid.Steam outlet pipe is answered relatively-stationary being arranged in the air outlet hole, for example, can adopt known clamping, bonding or mode such as be threaded to be arranged in the air outlet hole steam outlet pipe is relatively-stationary, relatively-stationary implication is to consider that steam outlet pipe has the special circumstances that maintenance or replacing etc. need dismounting, can not steam outlet pipe is fixing dead, should allow some leeway for the special circumstances that remove tracheae, but should note avoiding because the fixing insecure valve problem that comes off of steam outlet pipe in use that makes.The material of valve and the making method of valve, preparation process etc. should be suitable with the fluid of carrying, and adopt known technology to get final product.
Air inlet in the foregoing description (liquid) hole and projection are one, and (liquid) hole of giving vent to anger can be one, two, three, four or more, and for example when the foregoing description being applied in the sample analysis instrument, (liquid) hole of giving vent to anger can be 36.When being a plurality of in (liquid) hole of giving vent to anger, according to the actual conditions needs, projection can be one, two, three, four or more, and the principle that projection is provided with is: the quantity of projection is less than or the quantity in (liquid) hole that equals to give vent to anger.Air inlet (liquid) hole also can be one, two, three, four or more according to the actual conditions needs.When a plurality of air inlets (liquid) hole and/or projection being set and/or giving vent to anger (liquid) hole, can suitably adjust the size of valve body, to satisfy the requirement of aspects such as processing technology, the concrete process parameter of valve body.
Consider the easy loss of the long-term use in contact position of projection and push rod, projection in the foregoing description can be made into the arc line type appearance, the end that push rod is exposed at valve pocket is made into hemisphere type or trapezoidal, contacts with curved surface or curved surface contacts with the inclined-plane and reduces friction loss by curved surface.Projection can with the machine shaping of spool one, after also can separately making projection is fixedly mounted on the spool.If consider the saving cost again, can also be on the basis that guarantees the spool steadiness, spool is processed into be suitable for that projection contacts with push rod abnormally-structured.
Be slipped in the valve pocket for fear of push rod, the end that the push rod in the foregoing description contacts with sealing plug can be provided with round chimb with reference to the shape of nail, and when projection was left push rod, the chimb of push rod can be stuck in the conical section, avoided push rod to be slipped in the valve pocket.The sectional area of chimb should seal the sectional area at the position of conical section less than sealing plug, the circulation in (liquid) hole in order to avoid influence is given vent to anger.Further, this chimb can be designed to shapes such as " X " type, "-" type, not only can avoid push rod to be slipped in the valve pocket equally, and can avoid influencing the circulation in (liquid) hole of giving vent to anger.
Air inlet of the present utility model (liquid) hole also can be arranged on around the valve body or be beneficial to other position of use, rather than only is confined on the valve gap.Giving vent to anger in the foregoing description (liquid) hole also can be arranged at other position that is beneficial to use, the side that (liquid) hole is arranged at the bottom of circular valve, (liquid) hole of will giving vent to anger is arranged at the straight line type valve of for example will giving vent to anger, need do suitable adjustment according to the variation of (liquid) hole site of giving vent to anger this moment with the position of the projection on the spool.The variation of position in (liquid) hole of giving vent to anger should be noted that also to drive the moving direction of projection suitable with spool.
The quantity in air inlet of the present utility model (liquid) hole, projection, (liquid) hole of giving vent to anger can be provided with as required, when air inlet (liquid) hole, (liquid) hole of giving vent to anger, can finish man-to-man function when projection is one; When air inlet (liquid) hole, projection are (liquid) hole of giving vent to anger when being a plurality of, can finish the function of one-to-many, if air inlet (liquid) hole and projection also are made as a plurality of functions that can also finish multi-to-multi; An air inlet (liquid) hole cooperates the mode of a plurality of giving vent to anger (liquid) hole and a plurality of projectioies then can realize many logical functions (for example logical two, is logical third-class).When getting along well the contact of any push rod, projection can finish the function of contract fully, when projection and give vent to anger (liquid) can also be realized the function of full open when hole number is consistent.
Further, if only use (liquid) hole of partly giving vent to anger, (liquid) hole sealing that remaining is given vent to anger, when giving vent to anger during the fault of (liquid) hole of using, existing pipeline is opened and inserted in untapped giving vent to anger (liquid) hole can solve fault, make maintenance cost cheap, safeguard more convenient.
Claims (5)
1. multiway valve, comprise valve body (4), valve pocket (13), valve gap (5), drive the transmission shaft (12) of spool (6) motion, suction tude (2), one or more air outlet holes and corresponding steam outlet pipe (3), it is characterized in that said air outlet hole is made up of three hole sections, the diameter of its inner segment is less than the diameter of outer section, inner segment is connected by conical section with outer section, be provided with push rod (8) in the said air outlet hole successively, sealing plug (9) and spring (10), one end of push rod exposes in valve pocket (13), the other end contacts with sealing plug, sealing plug is arranged on the conical section of air outlet hole, an end that is in the spring of compressive state contacts with sealing plug, the other end contacts with steam outlet pipe, and said spool is provided with at least one and the suitable projection (7) of push rod.
2. multiway valve as claimed in claim 1 is characterized in that said valve body is cylindrical, and air outlet hole is provided with along the valve body circumference, and spool is a disc, and projection is arranged at spool and the interior relative position of push rod of air outlet hole.
3. multiway valve as claimed in claim 1 is characterized in that said valve body is a cuboid shape, and air outlet hole is arranged at valve body bottom or side, and spool is a cuboid shape, and projection is arranged at spool and the interior relative position of push rod of air outlet hole.
4. as claim 1 or 2 or 3 described multiway valves, it is characterized in that the end that said push rod contacts with sealing plug is provided with chimb, chimb is stuck in the conical section, and the sectional area of chimb is less than the sectional area at the position of sealing plug sealing conical section.
5. multiway valve as claimed in claim 4 is characterized in that said chimb is round or " X " type or "-" type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200048345U CN201028058Y (en) | 2007-02-09 | 2007-02-09 | Multi-pass valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200048345U CN201028058Y (en) | 2007-02-09 | 2007-02-09 | Multi-pass valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201028058Y true CN201028058Y (en) | 2008-02-27 |
Family
ID=39132270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200048345U Expired - Fee Related CN201028058Y (en) | 2007-02-09 | 2007-02-09 | Multi-pass valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201028058Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537421A (en) * | 2011-12-23 | 2012-07-04 | 上海仪电科学仪器股份有限公司 | High precision three-way valve |
-
2007
- 2007-02-09 CN CNU2007200048345U patent/CN201028058Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537421A (en) * | 2011-12-23 | 2012-07-04 | 上海仪电科学仪器股份有限公司 | High precision three-way valve |
| CN102537421B (en) * | 2011-12-23 | 2013-06-19 | 上海仪电科学仪器股份有限公司 | High precision three-way valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Shen Minqiang Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080227 |